Which of the following describes an organism that has two different alleles for a trait? A. heterozygous B. homozygous C. dominant D. recessive

What is Mendelian inheritance? a. Mendelian genes code an entire phenotype so that children will not be clones of their parents. b. Mendelian genetics are those genes that code for dominant or recessive illnesses but only if no polygenic traits cancel them out. c. Mendelian genes sit at one loci with one allele from Mom and one allele from Dad. d. Mendelian genetics is when two or more genes at two or more loci express one trait

Gregor Mendel was a critical contributor to our understanding of inheritance today. In his experiments, he tracked seven visual traits of pea plants and ensured that they produced offspring identical to themselves. What are the terms that we used to identify two separate factors? a. genotype; true breeding b. genotype; cross breeding c. phenotype; true breeding d. phenotype; cross breeding

When crossing two fruit flies with red eyes, which is a dominant trait, half of the male offspring are born with white eyes, but none of the females are. What is this an example of?   A. an autosomal recessive trait   B. an autosomal dominant trait   C. an X-linked recessive trait   D. an X-linked dominant trait